BlackAndBlue
New Member
I made the mistake and already moved the fry in the breeder box into the other tank this morning since it turned out to be a male. I will just wait and monitor the fish closely. Also No2 is at <0,01 at the main tank, I just checked. I will do many water changes and as many gravel vacccums as I can. The fish aren't hiding anymore and also the yollow one with the most internal bleeding is swimming around completely normal now. I will not make any conclusions to fast but I think(hope) it's getting better. But one question I have to ask is following: it is about another illness. My one lyretail molly has a fin that looks kind of melted, I asked on five different forums, asked a fish keeper that lives near me and looked it up. I never found any informations. It does look like fin melting but since he already has it for a few months everyone at the internet said, that it's just how his colorations and tail is. I also just left it like this because I did a two week fin rot treatment, without any improvement and added salt a few moths ago but at a lower consentration than I do now. Can that possibly be related to the cause of the internal bleeding? Maybe a possible parasite? And sorry to trouble you sooo muchDo a 75% water change and gravel clean the substrate every day for a week and add some salt.
Do not move any fish into the other tank because if these fish have an infection, you will spread it to the other tank. If you have already moved them, monitor the other tank closely for similar symptoms.
If the other tank has an established filter, you can take some of the old filter media/ material and put it in the new tank's filter. This will help to cycle the new tank and should get rid of the nitrite problem within 24-48 hours.
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